Answer:
1. 1918 2.The flu is a global and historical problem. Hope this helps :)
Explanation:
A And B
Flu is a communicable disease. Spanish flu began in 1918, and flu is a global phenomenon.
Influenza (flu) is a contagious/communicable respiratory illness caused by influenza viruses that infect the nose, throat, and lungs. The flu a disease becomes a pandemic when new influenza viruses evolve which can cause infection in people easily.
Therefore, it can be said that the above statement aptly explains Spanish flu.
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